This ledge in Victoria Park served as a hiding spot for Frodo, Sam, Merry and Pippin.

A taste of the macabre Tokyo's ritzy shopping district.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

Remnants of the Nazis' occupation of Denmark linger along the sand.

Artist and musician Will Menter creates musical sculptures.

These secretive tunnels were once the site of a Royal Air Force fuel reserve depot.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Beneath an ancient wishing tree lies an underground chapel with 12th-century frescoes and catacombs dedicated to a lady saint.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

A haunted slate mine turned concert hall and a hidden fairy garden.

Northern Europe’s largest castle ruins sit precariously on an island cliffside.

A place steeped in history that may be best known as the set of a 1960 film.

The biggest cave system in the Arabian Peninsula is home to a rare variety of blind fish.

The largest and best-preserved rotunda in Prague.

This Tudor-style mansion is home to the first roadside confectioner in the United States.

This modest relic, with rich history as a strategic fort through multiple eras.

A 30-foot-high stream of chocolate flows continuously at the Lindt Home of Chocolate.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

How did a 154-foot-long piece of spacecraft wind up abandoned along the side of a Florida road?

The ruins of this magnificent Scottish castle blend both Gothic and Renaissance architectural styles.

This castle was first occupied in the 1400s and has undergone major restoration in recent times.

The oldest Roman lighthouse still in use.

One of the oldest lighthouses in the world, this structure was built more than 800 years ago.

Ornamented with "Bristol Diamonds," this exotic shell grotto is considered to be the finest surviving example from the eighteenth century.